Samsung Galaxy S II / SGH-i777

Battery life on this compared to the Infuse....

well I did the comparison between this and the Infuse.... Although more powerful, the Galaxy S II has only a 3 hour battery life on talk compared to the 8 of the infuse? I mean I know that is talk time but imagine running other apps and what not on this... it would kill the battery even quicker....Any thoughts on this or concerns that the battery life ( as quoted on here ) make this the biggest reason to stay away from this phone?